The TiMOS-SR-13.0.R4-vm.qcow2 file is a virtual disk image used to run Nokia’s TiMOS (Timetra Operating System) on a virtual machine. The filename itself carries important information:
image is highly versatile and easily imported into major network simulation platforms. 1. Importing into GNS3 license not matching TiMOS-B-13.0.R4 - Alcatel Unleashed
The image simulates Nokia's robust implementation of routing protocols. Engineers can configure and test:
EVE-NG requires strict naming conventions for directory paths and files to recognize the image properly. Timos-sr-13.0.r4-vm.qcow2
: Without a valid lic.txt file, the system may reboot automatically every 60 minutes . license not matching TiMOS-B-13.0.R4 - Alcatel Unleashed
Network simulation is a critical requirement for modern network engineers, architects, and systems integrators. To design, test, and validate complex network topologies without investing millions in physical hardware, virtualized operating systems are indispensable. Among the most sought-after virtual images in service provider and enterprise routing environments is the file.
13.0.R4 : The software version (Major 13, Minor 0, Revision 4). The TiMOS-SR-13
The .qcow2 extension stands for . It is the native disk image format for the QEMU/KVM hypervisor. QCOW2 images are thin-provisioned, meaning they grow dynamically and consume physical storage only as data is written to the virtual disk. Use Cases for Virtual SR OS
: In cybersecurity, having access to various tools and environments is crucial for testing and validating the security posture of systems. This VM could provide a controlled environment for analyzing network traffic, testing security tools, or simulating attacks in a contained setting.
Set the to qemu-system-x86_64 (ensure KVM is enabled). Set the RAM to 2048MB . Importing into GNS3 license not matching TiMOS-B-13
Timos-sr-13.0.r4-vm.qcow2 is more than a file; it is a philosophy. It encapsulates the shift from "bare metal" to "anything-as-a-service." By taking the complex, stateful logic of a carrier router and sealing it into a portable, efficient, and virtualizable disk image, Nokia and the open-source community have democratized access to high-end networking. For the network engineer of 2025, this single file is a sandbox, a classroom, and a production tool—all contained within 2 gigabytes of digital storage. It proves that in the modern era, the most powerful routers are no longer measured in rack units, but in megabytes.
Have you deployed SR OS 13 in your KVM lab? Let me know what features you are testing in the comments.
Nokia (formerly Alcatel-Lucent) Service Router Operating System (SR OS) , specifically version In the Nokia ecosystem,
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